package JavaTest.superTest;

public class A {
    public int n1 = 100;
    protected int n2 = 200;
    int n3 = 300;
    private int n4 = 400;

    public A() {}
    public A(String name){}
    public A(String name, int age){}

    public void cal(){
        System.out.println("A类cal");
    }

    public void test100() {}
}
